Automatic brake system.



' W. U. G. SHAW & 0. JOHNSON.

AUTOMATIC BRAKE SYS'JTEM. APPLIQATION FILED JAN. 22. 1908.

Patented June 15. 1909.

2 SHEETS-SHEET 1 wil mgoaeo WPU. GQSHAW & 0. J'O'H'N'SON.

AUTOMATIG BRAKE SYSTEM. AJZPLIOATIOH IIILED'JAN. 22. 1908.

Patented Julie 15,1909.

2 SHEETS-SHEET 2.

1/94 tn mow multaneously throwing on the brakes] to the accompanymg drawings forming a reference to a "system .embodying sectional .ground conductors designed to close a cir- .suspended from the lever of said switch. l

UNITED STATES PATENT ouron.

WILLIAM U. G. SHAW AND OSCAR JOHNSON, OF LA FAYETTE, INDIANA, ASSIGNORS OF ONE THIRD ro VALENTINE McNEER, or WABASH, INDIANA .AUTQMATIC BRAKE SYSTEM.

- Specification of Letters Patent.

7 Application filed January-22,1908.

' Serial No. 412,160.

To all whom it may concern:

'Be it known that We, WILLIAM U. G. SHAW and ,OsoARIJOHNSON, citizens of the United States, residing at La Fayette, in the County of Ti pecanoe, State of Indiana, have inventer' certain new and useful 1'11- provements in- Automatic'Brake Systems; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention, such as will enable bthers skilled in the art to which it appertains to make and use the same. r

This invention relates to new and useful improvements in electricallvoperated brake systemsfor railways and it has particular there being of the'car.

Adjacent one of the rails 1 isa 'tliirdj' rail includes the shaft is 'departs are manually reset. cuit when two cars or 011 11165 are in the same block and to automatlcal'y operate electrical l in si- 26 of the switch I the link 24 being devices-for shutting efi? th power and I oted to the arm-27 and the link beingpivof a valve 28 which con- In connection with a system of the above trols the-supply of type, the invention arms as a primary obfrom the compression tank 29.. g V ject to provide a novel construction, combi- The brushes 15 are preferably supported nation'and arrangement of parts, the details of which will appear in the course of the following description, 'wherein reference is had part of this specification, like characters of reference designating similar parts throughout theseveral views in which Figure 1 is a view showing the invention as I out of use and hooks 15 are carried by the car for engagement in eyes 15 provided upon the arms 15 to sustain either of the brushes 15 raised, and s aced from the rails 1.

The form just descril ied is that illustrated applied to steam railroads. Fig. 2 is a detai fragmentary side elevation illustrating the mechanical connections employed in the Fig. 3, the forn shown in Figs. 1 and 2 beada tation of the mechanism to steamrailmg a modification thereof. In Figs. land 2, roa s. Fig. 3 is a detailed side elvation of a he numerals and 30 represent the cabs rock shaft embodied in an electricmotor forming a; art of the present invention, together wit 1 parts of the constituent devices directly controlled from said shaft. Fig. 4 is a side elevation showing an automatically operated electric switch and a pivoted arm of engines on the rails 1 oses of illustration, in the same block. arallel conductors 31 and 32 are arranged adjacent each of the rails 1. The E. M. F. is supplied from batteries 33 and 34 arranged in the cabs 30 and 30. One of the wires of each of said batteries has connection with Fig. 5 1s a side elevation showing a brush for l a brush 36, a similar brush 37 being arranged engaging the ground conductors above reon the opposite side of the cab to the brush ferred to. Fig. 6 is a view showing the bond- 36. The other wire 38 leading from the re ed third rail conductors employed in connecl spective batteries 33 and 34 has connection tion with electric railroad systems. with the operating .motor 13, which is an Referring specifically to the aocompanyexact duplicate in construction, function and ing drawings, the numeral 1 designates the operation of the motor 13 previously demain tracks ofarailroad upon which are the scribed. From each of the motors 13, cars 2 and 3. wires 39 lead to the brushes 37 of the respec- The numeral 13 indicates a motor and tive cabs 30 and 30. The wheel designated from this motor a wire 14 leads to a brush 15 19 in this embodiment of the invention acitrnan ock 21f I supporting guides 22. A:

second block 23 is likewise slidable between the guides 22, the block.23 being positively moved in one direction by the block 22 and" being moved in a reverse direction whenthe Pi'votally con-j nected to the block 23- are l'nks' 24 and 25,;

pivoted to'the pivoted arm against which bear;

; ,iaaa a June '15, 1909.

one of these brusheson cach'side" I conductor 16, tie rail sections of which are A motor is energized for parf air'to the brake system It will ap '15, dependent i on the direction of travel of the Joar, will be tuates a block 21 similar to the hlock 21- which'eniages a block 23, which together with the 1 guides 22. Links 24 and 25 are pivote ed to the; arm 41 of the throttle-vate 42, and the arm 27 of the brake valve 28' the arm 41 corresponding in function in connection witha steam en ine to the switch 10in the electric railroa system. With the exception of these ada tations, the two s stems are the same. T e conductors 31 an 32 are divided into blocks similarly to the conductor 16;.

brush sup orting conductors 31 and 32 be ing provi ed adjacent the breaks 31 and 32 the respective conductors 31 and 32.

' When two engines running in opposite direcenter the same block, the circuit is 1mfmediately closed to operate thecontrollinfi devices. In the present case starting wit ithe battery 33 the current will flow through 'the wire 35, brush 37, conductor 31, wire 39,

the motor 13 of cab ,wi1e 38, battery 34 in cab 30, wire 35 of that cab, brush 36, conductor 32, brush 37, motor 13 of cab 30, and

iii-back to the battery 33, the electrical devices "being operated in the manner described.

It is obvious that the conductors 31 and 32 ay be insulated by resistances of such strength that the current may be closed in like manner when two engines are on adja- .cent, blocks at thecontiguous ends thereof.

This feature of construction is likewise app'licable' to the electric railway system and is not claimed as 9; art of the present invention, but is merei eration of thesyste'm' as a w ole.-

ock 21 is slidable in supportin f to the block 23 and are respectivel connect-.

a It is preferred to place the conductor 16 or connections 'between said source of supply p,

y grecited to. show that it may be adoptedin effect'inghtlic efficient op-;

I It is preferred to interpose in the wire 35 electro magnetic-switches 43 for automatically cutting out thecircuit established between the cabs 30' and 30 after the operation of the electric devices therein, such switches being of conventional form.

the conductors 31 and 32 as the case may be,

sufiiciently close to the rails less to constitute said conductors guard rails.

What is claimed is:

and said second conductor, a shaft inclu in said motor, a wheel on said shaft, an air compression chamber, a conductor leading therefrom, a valve in said conductor-and operative connections between said controlling means and said wheel and between said valve and said wheel comprising a ide, a pair of pit'man connecting oneof said'blocks to said wheel, and links connectingsaid'valve and i switch t0 rt1he other block.

In test mony whereof, we amid signal: 7

tures, in presence of two'witnesses.;, I

f ,WILLIAM U.G.-.SHAW.f-. OSCAR JOHNSON, f- -Witnesses;-

Warren. Fi-ltlons,

'Msss 65 blocks independently slidable in said guide, a 4 

